Chemical Method for Activation of Carbonate-Containing Raw Materials in the Technology of Production of Ceramic Bricks by Semi-Dry Pressing

It is justified that in order to expand the raw material base of brick factories in the Orenburg Region, it is advisable to use multi-tonnage drilling waste accumulated in the region. The technology of chemical treatment of the mineral part of the carbonate-containing drilling waste with a 6% hydrochloric acid solution has been developed. As a result of chemical destruction of the structure of calcium-containing minerals, safe release of carbon dioxide, water and formation of CaCl₂ occurs directly on the barn sites, which melts in the range t=772–782^oC, increasing the amount of liquid phase, intensifying the processes of phase and structure formation of ceramic stone This leads to an improvement in the appearance of products and their physical and mechanical properties. The scheme of industrial decarbonization of drilling waste is given.

V.A. GUR’EVA¹, Doctor of Sciences (Engineerig) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
V.V. DUBINETCKIY², Engineer

¹ Orenburg State University (13, Pobedy Avenu, Orenburg, 460018, Russian Federation)
² Buzuluk Humanitarian and Technological Institute (35, Rabochaya Street, Buzuluk, 461040, Russian Federation)

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